Indoor positioning systems (IPS) use sensors and communication technologies to locate
objects in indoor environments. IPS are attracting scientific and enterprise interest because …

This paper reviews measurement techniques and corresponding devices used to determine
the physical properties of the seasonal snowpack from distances close to the ground …

In this paper, a new image fusion algorithm based on fourth order partial differential
equations and principal component analysis is introduced. This is for the first time fourth …

Code pseudorange measurements of the Chinese GNSS BeiDou reveal variations which
result in code–phase divergences of more than 1 m. We have analyzed these delay …

Conventional metric learning methods usually assume that the training and test samples are
captured in similar scenarios so that their distributions are assumed to be the same. This …

The fifth edition of this textbook has been completely revised and significantly extended in
order to reflect the revolution of geodetic technologies, methods and applications during the …

В томе 1 монографии дано описание российской и американской спутниковых
радионавигационных систем ГЛОНАСС и NAVSTAR GPS, аппаратуры пользователей …

In recent years, there is an increasing demand for precise positioning with low-cost GNSS
devices in support of applications from self-driving cars to unmanned aerial vehicles …

Abstract Nowadays, China BeiDou Navigation Satellite System (BDS) has been developed
well and provided global services with highly precise positioning, navigation and timing …

The update of the Android system and the emergence of the dual-frequency GNSS chips
enable smartphones to acquire dual-frequency GNSS observations. In this paper, the GPS …